[2277] “Sero picis.” Hardouin is of opinion that under this name pisselæon is intended. See B. xv. c. 7, B. xxiv. cc. 11, 24, and B. xxv. c. 22.
[2278] At the beginning of this Chapter in part.
[2279] Aluminous silicates, as Delafosse remarks, more or less combined with other minerals. Though employed for various purposes in the arts, they are now but little used in medicine.
[2280] Probably because it was the more extensively employed of the two, in “collyria,” or compositions for the eyes.
[2281] “Star” earth, apparently.
[2282] From Eretria, in Eubœa. See B. iv. c. 21.
[2283] In Chapter [21] of this Book.
[2284] It appears to be a matter of doubt whether it was found at Selinus, in Sicily, or the place of that name in Cilicia. See B. iii. c. 14, and B. v. c. 22.
[2285] Agricola is of opinion that this earth had its name from the place called Pnigeum, in the Libyan Mareotis. Other commentators would have it to be derived from πνίγω, “to suffocate,” such being its effect if taken internally.
[2286] See the next Chapter.